Answer:
a. y = 250 (0.4)^x
b. 0.066
Step-by-step explanation:
The equation can be modeled as a geometric sequence, where the first term is 100 and the common ratio is 0.4.
y = 100 (0.4)^(x − 1)
This can also be simplified to:
y = 250 (0.4)^x
When x = 9:
y = 250 (0.4)^9
y = 0.066
Answer:
14 - 9x + 12 + x
This is an <em>expression </em>(not an equation), therefore it can't be solved.
<u>Factor the expression</u>
Collect like terms:
⇒ 14 + 12 - 9x + x
Combine like terms:
⇒ -8x + 26
Find the highest common factor of 26 and 8
- Factors of 26: 1, 2, 13, 26
- Factors of 8: 1, 2, 4, 8
Therefore, the highest common factor is 2
Factor out -2 from -8x + 26:
⇒ -2(4x + 13)
Alternatively, factor out 2 from 26 - 8x:
⇒ 2(13 - 4x)
Answer:
D
Step-by-step explanation:
Just divide the 2 rates, so for Candice it would be 11.98 / 2 so 5.99 per pizza.
For Peter just pick any rate, like 23.96 / 4, which would also be 5.99 per pizza.
1/4 = .25
so .25x = 20
divide
and u get 80
I believe it’s 1/2 I ask my math teacher
